118 research outputs found
Effects of sulfur dioxide on wine made with sulfitic maceration
Sulfitic maceration is part of a technique used in large companies to store must through the superdosing of sulfur dioxide added after the destemming of the grapes. The objective of this study was to analyze the physico-chemical characteristics of the wines elaborated by sulfitic maceration. The study was conducted at the Federal University of Pampa (UNIPAMPA), Campus Dom Pedrito, RS, Brazil. Three vinifications (identified by treatments 1, 2 and 3) were performed with 3 replicates each. The grapes used were the cultivar Alicante Bouschet. Treatment 1 underwent the same procedures as treatment 2, except for the dosage of 1400 mg.L−1 of added sulfur dioxide. The grapes were destemmed, crushed and macerated for 2 days and before fermentation started, the must was heated to remove SO2. In the treatment 3 a traditional maceration was carried out for 5 days. The physicochemical characteristics of the wines were analyzed by Fourier Transform Infrared Spectroscopy (FTIR) and the results were analyzed by statistical analysis of comparison of averages. The color intensity of treatment 2 showed no significant difference in relation to the treatment 3, demonstrating that with 2 days of sulphitic maceration, occurs a color extraction similar to a traditional 5-day maceration
Descrição morfológica dos ramos colaterais viscerais da aorta abdominal do macaco-de-cheiro
SUPRIMENTO ARTERIAL PARA A BOLSA CLOACAL DE GALINHAS (Gallus gallus Linnaeus, 1758) DA LINHAGEM LABEL ROUGE
Foram estudados a origem, o número e a ordenação dos ramos arteriais destinados à
bolsa cloacal em 30 exemplares de Gallus gallus, da linhagem Label Rouge, machos e fêmeas, com
idade entre oito e dez semanas. Após injetado o sistema arterial desses animais com solução corada
de Neoprene látex, seguido de fixação em solução aquosa de formol a 10 % e ulteriormente
dissecados, verificou-se que: a) uma artéria bursocloacal direita esteve presente em 24 dos casos
(80,00%), ao passo que a artéria bursocloacal esquerda foi confirmada em 29 dos exemplares
(96,66%); b) a bolsa cloacal foi irrigada por um ou dois ramos cloacais, oriundos da artéria bursocloacal
ipsilateral; c) a artéria cloacal direita ocorreu em 20 casos (66,66%) e a artéria cloacal esquerda em
9 casos (30,00%), ocasiões em que cediam apenas um ramo; d) o número de ramos arteriais,
independentemente de sua origen, variou de dois a quatro, sendo a sua disposição de maneira
própria para cada exemplar examinado.
Arterial supply for the cloacal bursa of the Rouge Lineage fowl
Gallus gallus (Linnaeus, 1758)
Abstract
A study has been carried out on the origin, number and disposition of the cloacal
bursa arterial branches from tirthy male and female fowls (Gallus gallus), of the Label Rouge lineage,
ageing between eight and ten weeks. After being injected the arterial system of those animals with
a colored solution of Neoprene latex, they were soon after fixed in an 10% aqueous solution of
formalin and dissected. The following observations were carried out: a) a right burso cloacal artery
was present in 24 of the cases (80.00%), while the left bursocloacal artery was confirmed in 29 of the
cases (96.66%); b) the cloacal bursa was irrigated by one or two cloacal branches of the ipsilateral
bursocloacal artery; c) the right cloacal artery is present in 20 cases (66.66%) and the left cloacal
artery in 9 cases (30.00%), with only one branch; d) the number of arterial branches, independent of
origin
Ramos colaterais parietais e terminais da aorta abdominal em Myocastor coypus (nutria)
Modelo de suprimento sanguíneo do intestino grosso do tamanduá bandeira (Myrmecophaga tridactyla)
Development and maturation of the lung in fetuses of Galea spixii and expression of markers
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